As mentioned before, the Universe is not all sweetness and light. There are disaffected and mischievous beings, including human beings, possibly at many levels of reality.
Therefore, do not attempt to ‘channel’ anyone, unless in a group led by an experienced psychic, who will arrange for the necessary protection. This applies particularly to Ouija boards.
Also, when talking to God (or other high being), ask to be protected against wishful thinking and self-delusion. The veracity of a response can sometimes be judged by its unusual wording, or if it is a comment on one’s character fault(s) yet to be addressed: uncomfortable but helpful.